Getting On Board

Getting On Board
An old advertising medium is being reinvented. Billboards are getting smart and interactive, to let you in on the action
By DODY TSIANTAR

[...] In Japan, 30 million phones are equipped with a gizmo for reading QR Code, a tiny two-dimensional bar code commonly found on the front of magazines, which can bounce readers to a website, a competition or discount coupons. Last October in Tokyo, Northwest Airlines blew up QR codes to as large as 10 m in height and put them on billboards for passersby to snap, decode and win air miles in an online contest. [...]